This is the easiest solution, and its typically good enough for most situations.

The other option is toreplace your single battery with matched brand new batteries or add a deep cycle backup.

That means youre looking for a high-performance battery that offers a lot of reserve capacity.

Tokyo Auto Salon 2015

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If you have space for a bigger battery, then that’s the simplest option.

It doesn’t get any easier than that.

The batteries should be the exact same brand, group, and age.

Second battery high performance audio wiring diagram

There are multiple ways to wire a second battery into a car, but this is a good place to start.

When you wire the batteries together, it’s essential to wire them in parallel.

For extra protection, consider installing a fuse at both the original battery and the second battery.

Both batteries also need to be connected to the chassis or some other good ground location.

For instance, you could install both the second battery and the amplifier in the trunk.

It’s also extremely important to use an inline amplifier fuse between the new battery and the amp.

Thats when the extra capacity really comes in handy.